Kittiwongwattana, Chokchai
Loading...
Preferred name
Kittiwongwattana, Chokchai
Alternative Name
Kittiwongwattana, Chockchai
Main Affiliation
Email
chokchai.ki@kmitl.ac.th
26 results
Now showing 1 - 10 of 26
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Biocontrol Potential, Genome and Nonribosomal Peptide Synthetase Gene Expression of Bacillus velezensis 2211(2023-01-01) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Evaluations of the mutagenicity of a pigment extract from bulb culture of Hippeastrum reticulatum(2014-01-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Paenibacillus lemnae sp. nov., an endophytic bacterium of duckweed (Lemna aequinoctialis)(2015-01-01); A Gram-stain-variable, rod-shaped and endospore-forming bacterium, designated strain L7-75, was isolated from duckweed (Lemna aequinoctialis). Cells were motile with a monopolar flagellum. Phylogenetic analysis of the 16S rRNA gene sequence indicated that strain L7-75<sup>T</sup> belonged to the genusPaenibacillus, and the closest phylogenetically related species werePaenibacillus uliginis N3/975<sup>T</sup> (98.5 % 16S rRNA gene sequence similarity),Paenibacillus purispatii ES_M17<sup>T</sup> (98.5 %), Paenibacillus lactis MB 1871<sup>T</sup> (98.2 %), Paenibacillus campinasensis 324<sup>T</sup> (97.7 %), Paenibacillus glucanolyticusS93<sup>T</sup> (97.7 %) and Paenibacillus lautus ATCC 43898<sup>T</sup> (97.4 %). Growth of strain L7-75<sup>T</sup> was observed at pH 7–10 and at 20–40 °C, and NaCl concentrations up to 5 % (w/v) were tolerated. Major cellular fatty acids included anteiso-C<inf>15 : 0</inf>, C<inf>16 : 0</inf> and anteiso-C<inf>17 : 0</inf> that were present at 36.0 %, 14.2 % and 10.0 % of the total cellular fatty acid profile, respectively. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and phosphatidyl-N-methylethanolamine. MK-7 was the predominant menaquinone. The diamino acid found in the cell-wall peptidoglycan wasmeso-diaminopimelic acid. The DNA G+C content was 49.1 mol% (T<inf>m</inf>). DNA–DNA relatedness values between strain L7-75<sup>T</sup> and its closest relatives ranged from 4.4 to 47.8 %. These results indicate that strain L7-75<sup>T</sup> represents a novel species of the genus Paenibacillus, for which the name Paenibacillus lemnaesp. nov. is proposed. The type strain is L7-75<sup>T</sup> ( = BCC 67838<sup>T</sup> = NBRC 109972<sup>T</sup>). - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Pseudoxanthomonas helianthi sp. Nov., isolated from roots of Jerusalem artichoke (Helianthus tuberosus)(2016-12-01); A bacterium designated as strain roo10<sup>T</sup> was isolated from roots of Jerusalem artichoke (Helianthus tuberosus). Cells were Gram-stain-negative and non-motile rods. The phylogenetic analysis of the 16S rRNA gene indicated that it represented a member of the genus Pseudoxanthomonas, and its close relatives included Pseudoxanthomonas kalamensis JA40<sup>T</sup> (97.8% 16S rRNA gene sequence similarity), Pseudoxanthomonas sangjuensis 5GH38-5<sup>T</sup> (97.7%) and Pseudoxanthomonas daejeonensis TR6-08<sup>T</sup> (97.1%). Growth of roo10<sup>T</sup> occurred at pH 7-9. The temperature for growth ranged from 20 to 37 °C. Tolerance to NaCl was observed from 0.005 to 5% (w/v) concentration. Predominant fatty acids were iso-C<inf>15:0</inf> (23.5%), iso-C<inf>16:0</inf> (18.9%) and anteiso-C<inf>15:0</inf> (11.5%). Diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and phosphatidyl-N-methylethanolamine were the major polar lipids. The predominant quinone was ubiquinone 8 (Q-8). The DNA G+C content was 65.7 mol% [from melting temperature (T<inf>m</inf>)]. Comparison of phenotypic and chemotaxonomic characteristics indicated that roo10<sup>T</sup> was distinguishable from its close relatives. Additionally, the DNA-DNA relatedness levels between roo10<sup>T</sup> and P. kalamensis DSM 18571<sup>T</sup> (22±0.5%), P. sangjuensis 5GH38-5<sup>T</sup> (21±0.2%) and P. daejeonensis DSM 17801<sup>T</sup> (3±1%) were lower than 70%. These results indicated that roo10<sup>T</sup> represented a novel species of the genus Pseudoxanthomonas, for which the name Pseudoxanthomonas helianthi sp. nov. is proposed. The type strain is roo10<sup>T</sup> (=BCC 70700<sup>T</sup>=NBRC 110414<sup>T</sup>). - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effects of nutrient media on vegetative growth of Lemna minor and Landoltia punctata during in vitro and ex vitro cultivation(2013-03-28); Vuttipongchaikij, SupachaiLemnaceous plants, namely Lemna minor and Landoltia punctata, have been used in various types of biological research. The effects of Murashige and Skoog (MS) and Hoagland media on vegetative growth rate of both species during in vitro and ex vitro cultivation were investigated. Under axenic conditions, frond proliferation of L. minor and Lan. punctata in Hoagland medium are 8 and 11.5% respectively faster than that in MS medium. Biomass production in Hoagland medium also increases 2.2-fold (L. minor) and 1.4- fold (Lan. punctata) compared to MS medium. The roots of both species in MS medium are distinctly shorter than those in Hoagland medium. In contrast, ex vitro regeneration of frond colonies in MS medium is 22.2% (for L. minor) and 17.1% (for Lan. punctata) faster than in Hoagland medium. Similarly, ex vitro biomass production of both species in MS increases 1. 8-fold (for L. minor) and 1.3-fold (for Lan. punctata) compared to that in Hoagland medium. Root elongation of the frond colonies in MS and Hoagland media is comparable. The distinct effects of MS and Hoagland media on vegetative growth of both species and the pre-determination of ex vitro growth rates in each medium are demonstrated. © 2013 by Maejo University, San Sai, Chiang Mai, 50290 Thailand. Reproduction is permitted for noncommercial purposes. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Chitinophaga oryzae sp. Nov., an epiphytic bacterium isolated from rice root surfaces(2021-01-01) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Light-Emitting Diode Illumination Enhances Biomass, Pigment, and Lipid Production in Halotolerant Cyanobacterium Aphanothece halophytica(2025-06-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Differential effects of synthetic media on long-term growth, starch accumulation and transcription of ADP-glucosepyrophosphorylase subunit genes in Landoltia punctata(2019-12-01)Murashige & Skoog (MS) and Hoagland’s media were previously used for in vitro culture of Landoltia punctata. During subsequent ex vitro culture, the use of MS medium resulted in a higher growth rate, compared to Hoagland’s medium. Thus, a higher starch content of L. punctata in MS medium was previously hypothesized. Here, L. punctata strain 5632 was isolated and characterized using morphological characteristics and the atpF-atpH intergenic region. During early cultivation stage, fresh weight and relative growth rate in MS medium were lower than Hoagland’s medium. Conversely, starch content in MS medium was considerably higher than in Hoagland’s medium. Medium effects on expression of genes coding for starch-biosynthesis ADP-glucosepyrophosphorylase (AGPase) were determined. Genomic fragments of small (LeAPS) and large (LeAPL1) AGPase subunits were characterized. Differential expression between each AGPase subunit genes was observed in both media. Additionally, in MS medium, the highest correlation coefficients between starch content and gene expression was found with LeAPS (0.81) and followed by LeAPL3 (0.67), LeAPL2 (0.65) and LeAPL1 (0.28). In Hoagland’s medium, the coefficients of LeAPL3 (0.83) and LeAPL2 (0.62) were higher than LeAPS (0.18) and LeAPL1 (−0.62). This suggested different levels of contributions of these genes in starch biosynthesis in both media. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Biogas effluent treatment by Landoltia punctata for starch biomass production(2023-05-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Micromonospora endophytica sp. nov., an endophytic actinobacteria of Thai upland rice (Oryza sativa)(2015-11-01); ; ; An actinobacterial strain, DCWR9-8-2 T, was isolated from a leaf of Thai upland rice (Oryza sativa) collected in Chumporn province, Thailand. Strain DCWR9-8-2 T is Gram-stain-positive aerobic bacteria that produce single spores directly on the vegetative hypha. Cell wall peptidoglycan of this strain exhibits meso-diaminopimelic acid and glycine, the reducing sugars of whole-cell hydrolysate are arabinose, glucose, ribose, xylose and small amount of mannose. The phospholipid profiles in the membrane are comprised of phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannosides. The major menaquinones are MK-9(H 4) and MK-10(H 6). The diagnostic cellular fatty acids are iso-C 16:0 and iso-C 15:0. The G+C content of the genomic DNA is 72.5 mol%. The result of 16S rRNA sequence analysis of the strain revealed that this strain was closely related to Micromonospora auratinigra TT1-11 T (99.25%). On the other hand, the result of gyrB gene sequence analysis revealed that this strain was closed to M. eburnea JCM 12345 T (96.30%). In addition, a combination of DNA-DNA hybridization results and some phenotypic properties supported that this strain should be judged as a novel species of the genus Micromonospora, for which the name M. endophytica sp. nov. is proposed. The type strain is DCWR9-8-2 T (=BCC 67267 T =NBRC 110008 T).1